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Official data from INPI

DISPOSIÇÃO DE CIRCUITO PARA A DERIVAÇÃO DE SOBRETENSÕES

Em ExigênciaInvention Patent

Application data

Number

PI8405721

Type

Invention Patent

Filing

11/09/1984

Publication

09/10/1985

Progress at the INPI

  1. Filing11/09/84
  2. Publication09/10/85
  3. Examination08/11/87
  4. Allowance09/18/90
  5. Grant03/26/91
  6. Terminated09/12/95

The patent was granted on 03/26/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

See this company's full portfolio

Inventors

K. W. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 33 40 927.7 · 11/11/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

05/30/1989

RPI 971

Solicitação de exame técnico

#4.1

08/11/1987

RPI 877

Publicação do pedido de patente

#3.1

09/10/1985

RPI 777

Pedido de patente depositado

#2.1

01/29/1985

RPI 745

Anuidade - prazo legal encerrado

#18.2

09/12/1995

RPI 1293

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

01/02/1991

RPI 1048

Deferimento

#9.1

09/18/1990

RPI 1033

Exigência - art. 36 da LPI

#6.1

05/08/1990

RPI 1017

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